West Wales Grey Seal Census 1991 to 1994

The large breeding colonies of grey seals in northern Britain have been censused annually in recent years by the Sea Mammal Research Unit, but the relatively small population in Wales had not been the subject of a population estimate since 1974 and there had never been a comprehensive census of all mainland and island sites sustained through a pupping season. The purpose of this data capture was to locate and document all grey seal breeding sites during the main pupping season from September to December 1991 and to estimate pup production at these sites. To estimate the total number of cows in the West Wales population, identify 'areas' where seals are subject to disturbance by man and assess the quality of the breeding haul-out environment.

Identifier: NRW_DS110319

Alternative Title

Cyfrifiad Morloi Llwyd Gorllewin Cymru 1991-1994

Metadata Language: English

Lineage: The study area comprising the Dyfed coast and offshore islands between Aberystwyth and Caldey Island was divided into 11 sections designated by the letters A to K, at locations with road access to slipways from which the survey vessel could be launched.In each section the coast was surveyed by land and sea between September 1991 and the onset of the 1992 pupping season and all locations considered to be possible grey seal pupping sites were recorded on maps and investigated by landing on the site from the sea. The criteria used for inclusion in the list of potential pupping sites were: - The presence of a beach above the level of high-water, - Access for seals from the sea, and - Relatively low human disturbance.

Dataset Reference Date (Publication): 1995-12-31

Temporal Extent

Begin date: 1991-01-01

End date: 1994-12-31

Topic category

Biota

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Dyfed Wildlife Trust

c/o The Wildlife Trust of South and West Wales, Nature Centre, Parc Slip, Fountain Road, Mid Glamorgan, CF32 0E, Wales

http://www.welshwildlife.org/

Extent

Geographic Extent: Wales (WLS)

Vertical Extent

Medin Extent Keyword: benthic boundary layer

Format Type and Description

Documents Documents ()

Specification

[A] Excel spreadsheets [B] Paper report [C] Paper data - off site in archive

Data quality

Quality Scope: Dataset

Conformity: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation
Degree: false

Lineage: The study area comprising the Dyfed coast and offshore islands between Aberystwyth and Caldey Island was divided into 11 sections designated by the letters A to K, at locations with road access to slipways from which the survey vessel could be launched.In each section the coast was surveyed by land and sea between September 1991 and the onset of the 1992 pupping season and all locations considered to be possible grey seal pupping sites were recorded on maps and investigated by landing on the site from the sea. The criteria used for inclusion in the list of potential pupping sites were: - The presence of a beach above the level of high-water, - Access for seals from the sea, and - Relatively low human disturbance.

Keywords

GEMET - INSPIRE themes, version 1.0

Species distribution

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

grey seals
halichoerus grypus
West Wales
census
seal breeding census
marine and freshwater inventory

Type: Theme

Citation

Date (Publication): 2023-12-31

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary

Seal reproduction
Seal abundance

Type: Theme

Citation

Date (Revision): 2021-01-06

Code: geonetwork.thesaurus.external.theme.rdf+xml

Keywords

NRW SMNR Vocabulary

Animals, Plants and Other Organisms (SMNR)
Natural Resources (incl. Features and Processes) (SMNR)
Ecosystem (SMNR)
Coastal Margins (SMNR)
Sustainable Management of Natural Resources (SMNR)
Sea and Coast (SMNR)
Marine (SMNR)
Management Areas (SMNR)

Type: Theme

Citation

Date (Revision): 2023-12-27

Code: geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

NRW Related Title: The west Wales grey seal census

NRW Related Title: West Wales grey seal census : interim report on the 1993 season

NRW Related Title: West Wales grey seal census : report on the 1991 survey (In Confidence)

NRW Related Title: West Wales grey seal census : report on the 1992 season

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: There are no access restrictions to this data. NRW may release, publish or disseminate it freely.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313130333139 XML

Metadata Language: English

Resource type: Dataset

Metadata Date: 2024-05-31T09:43:41.221Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

West Wales Grey Seal Census 1991 to 1994

Identification

Temporal Extent

Extent

Extent

Vertical Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body